Passage 1 begins with the word "my", which tells us that the 1st person is used.
Passage 2 is written in the third person, and gives a detailed description of the man. However, it does not give any insight into the man's thoughts or give any information that someone who knows the fighter well wouldn't know. This is 3rd person limited.
Passage 3 described the character's thoughts in 3rd person. This is third person omniscient.
Passage 4 The narrator uses the word you, so this is 2nd person.
